An umbilical hernia in dogs is a soft bulge near the belly button where abdominal contents, usually fat or occasionally intestines, push through a gap in the abdominal wall. It happens when the opening where the umbilical cord was attached fails to close properly after birth. Most are small, painless, and harmless, but larger hernias carry a risk of serious complications that require surgery.
How Umbilical Hernias Form
When a puppy is born, the umbilical cord breaks and the small hole it leaves in the abdominal wall normally seals shut on its own. An umbilical hernia develops when that hole, called the umbilical ring, stays open instead of closing. Abdominal fat is the most common tissue to slip through the gap, creating a soft lump you can feel just below the ribcage on the puppy’s belly. In larger hernias, loops of intestine can also push through.
Most umbilical hernias are congenital, meaning puppies are born with the defect or develop it within the first few weeks of life. Occasionally, trauma during the cord-cutting process can contribute, but the majority are simply a failure of normal development.
Breeds With Higher Risk
Certain breeds are more prone to umbilical hernias, including Weimaraners, Pekingese, Basenjis, and Airedale Terriers. A hereditary cause is suspected but hasn’t been definitively proven. Interestingly, dogs with umbilical hernias frequently also have undescended testicles (cryptorchidism), which suggests a shared developmental link. If you’re buying a puppy from a breeder, it’s worth asking whether either condition has appeared in the parents’ previous litters.
What It Looks and Feels Like
The hallmark sign is a soft, squishy lump right at the belly button. In small hernias, the bump may be marble-sized and only noticeable when your puppy is standing or straining. You can often push the contents back through the opening with gentle pressure, and the lump temporarily disappears. This is what vets call a “reducible” hernia, and it’s the most common type.
A hernia that can’t be pushed back in is more concerning. It may mean the tissue has become trapped in the opening. If the trapped tissue is intestine, blood supply can be cut off, a condition called strangulation. Warning signs of a strangulated hernia include:
- A large, warm hernia sac that feels firm rather than soft
- Vomiting
- Abdominal pain (whimpering, reluctance to move, a tense belly)
- Loss of appetite
- Lethargy or depression
A strangulated hernia is a life-threatening emergency. If your dog shows any of these signs, get to a vet immediately.
When Surgery Is Needed
Small hernias that contain only a bit of fat and can be easily pushed back in often don’t need treatment at all. Many vets will simply monitor them over time, especially in young puppies, since some small defects close on their own as the puppy grows.
Larger hernias are a different story. When the opening is wide enough for intestinal loops to slip through, the risk of strangulation goes up, and surgical repair is recommended. Your vet will assess the size of the ring, what’s coming through it, and whether the contents can be pushed back in. If surgery is needed, many vets schedule the repair at the same time as a spay or neuter, since the dog is already under anesthesia. This combined approach is common and significantly reduces the cost.
If strangulation occurs, the surgery becomes an emergency procedure, which is more complex, more expensive, and carries higher risk. That’s the main reason vets recommend fixing larger hernias before something goes wrong rather than waiting.
What Surgery Involves and Costs
The repair, called a herniorrhaphy, involves pushing the protruding tissue back into the abdomen and closing the opening in the abdominal wall with sutures. It’s a straightforward procedure when done electively. The hernial ring needs to be firm enough to hold sutures, which is usually the case in puppies older than a couple of months.
Cost varies depending on whether the repair is done as a standalone surgery or combined with another procedure. As a standalone operation, umbilical hernia repair typically runs between $150 and $400. When added onto a spay or neuter, the additional cost drops to roughly $55 to $75, making it a practical time to address the issue. Emergency surgery for a strangulated hernia will cost considerably more due to the urgency and potential need for intestinal repair.
Recovery After Surgery
Most dogs recover from hernia repair in 10 to 14 days. During that window, you’ll need to keep your dog clean, dry, and calm. Dogs should go outside on a leash only to relieve themselves, with no off-leash time, no running, jumping, playing, or swimming. The surgical site is actively healing during those first two weeks, and any rough activity can tear sutures or cause swelling.
Even after the incision looks healed on the outside, the deeper tissue layers are still knitting together. Vets typically recommend avoiding strenuous activity for a full four weeks after surgery. After that, most dogs return to completely normal activity with no lasting effects. The recurrence rate for properly repaired umbilical hernias is low.